Update requirements.txt

Author: NeoDev

requirements.txt

@@ -22,7 +22,7 @@ libf0
 transformers==4.44.2
 matplotlib==3.7.2
 tensorboard
-gradio==4.43.0
+gradio==3.49.0
 certifi>=2023.07.22; sys_platform == 'darwin'  
 antlr4-python3-runtime==4.8; sys_platform == 'darwin'
 tensorboardX